I need engineering drawings for our products

We make water treatment products that are basically a pipe with threaded ends or a pipe with flanges. The products come in different sizes 1/2" (15mm) to 24" ( 600mm) Diameter and lengths varying from 7" (175mm) to 3 feet (600mm) we need a drawing showing a length b diameter and in the case of Flange flange width and depth and in the case of one product variable width. Photos will be provided probably 8 drawings required in total with boxes that can be filled by us which will have client name: Project name date Model name: and finally a box with the dimension letters (A) (B) (C) (D) () Etc and a blank box next to them for us to fill in the dimensions visit the products section of www. treatwater.com to see the products.